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daboonka

Overdrive activating automatically

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Hi Guys,

So i have a 1999 Automatic S14a. While cruising at 80 km/ph, the revs usually sit at around 1.5 - 2K. when the overdrive button is turned off, (depressed) and still cruising at 80, the revs sit around the 4K range.

The problem i am now having is that the overdrive button is on (pressed in) and while cruising at 80, the revs will be at around the 4K range, then drop to 1.5-2K then back to 4K. It seems the Over-drive is turning itself off but is not showing on the cluster display.

Has anyone else experiences this or know what the problem may be?

Thanks in advance.

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tps could possibly be playing up making the car think you have your foot down more, or other sensors making there seem to be more load on the motor

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^^

replace the auto tps (it is different to manual btw)

you should be able to check fault codes on the auto box ecu, its possible your auto is dying.

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